CN108801463B - Laser cigarette label color difference measuring device - Google Patents
Laser cigarette label color difference measuring device Download PDFInfo
- Publication number
- CN108801463B CN108801463B CN201810601976.2A CN201810601976A CN108801463B CN 108801463 B CN108801463 B CN 108801463B CN 201810601976 A CN201810601976 A CN 201810601976A CN 108801463 B CN108801463 B CN 108801463B
- Authority
- CN
- China
- Prior art keywords
- measuring device
- color
- platform
- linear motion
- measuring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 235000019504 cigarettes Nutrition 0.000 title claims abstract description 37
- 238000005259 measurement Methods 0.000 claims abstract description 42
- 238000001179 sorption measurement Methods 0.000 claims abstract description 25
- 238000012937 correction Methods 0.000 claims abstract description 19
- 238000005070 sampling Methods 0.000 claims abstract description 9
- 238000005286 illumination Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 239000000779 smoke Substances 0.000 abstract description 9
- 230000003595 spectral effect Effects 0.000 description 9
- 230000004075 alteration Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000002310 reflectometry Methods 0.000 description 5
- 241000208125 Nicotiana Species 0.000 description 3
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 3
- 238000000691 measurement method Methods 0.000 description 3
- 230000000737 periodic effect Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
- G01J3/50—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors
- G01J3/501—Colorimeters using spectrally-selective light sources, e.g. LEDs
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Spectrometry And Color Measurement (AREA)
Abstract
The invention relates to a laser cigarette label color difference measuring device. The measuring device comprises a box body (1), an LED light source (2), a camera (3), a vacuum adsorption lofting platform (4), a light source button (5), a negative pressure button (6), an industrial personal computer (7), a display (8), a vacuum adsorption pump (9), a measuring platform (10), an L-shaped gauge (17) and a safety grating (18). The measuring platform (10) comprises an X-axis linear motion device (11), a Y-axis linear motion device (12), a zero correction box (13), a correction whiteboard (14), a guide rail (15) and a color measuring device (16); the rectangular sampling window of the color measuring device (16) is not less than 50mm in length and not less than 8mm in width. The measuring device provided by the invention can be used for carrying out color difference measurement on the laser smoke standard sample, so that the accuracy of a measuring result can be improved.
Description
Technical Field
The invention belongs to the field of laser cigarette label color difference measurement, and particularly relates to a laser cigarette label color difference measurement device.
Background
The laser paper has wide application in the packaging and printing fields with the bright rainbow effect. The laser paper is characterized in that a plurality of parallel convex strips or concave strips are arranged on a flat paper surface at intervals, under the irradiation of incident light, the convex strips or concave strips generate diffuse reflection and diffraction effects on light, and flat areas between adjacent convex strips or concave strips generate specular reflection, the diffuse reflection, the diffraction and the specular reflection alternately exist, so that the visual effect is that the periodic variation of iridescence is seen. Wherein the specular reflection area is referred to as a light beam area, and the direction of the specular reflected light in the light beam area is referred to as a light beam direction, and wherein the diffuse reflection area is referred to as a clutter reflection area, as shown in fig. 3 and 4. The color measurement is affected by such iridescent properties and specular reflection, and varies significantly with illumination and viewing angle. The color measurement and evaluation of the laser paper and the printed matter thereof do not have corresponding measurement standards and industry specifications at present. The technician can not ensure the same batch of products or even different batches of products have consistent colors by visual observation or adopting the existing color measuring instrument, so that a large amount of waste products can be generated in the production process.
The traditional laser cigarette label color measurement method is generally to observe by human eyes or measure one or a plurality of points at a fixed position through a traditional color difference meter to judge whether the cigarette label is qualified or not. The human eye observation method has the disadvantage that subjective judgment exists in the color of the human eye, and a certain deviation is easy to occur. When the traditional color difference meter measures color information of different positions of a smoke standard sample, the traditional color difference meter needs to be manually moved for multiple times to measure different positions, if the measured position area is smaller, whether the measured caliber is fully covered in the measured area or not is determined, and the traditional color difference meter does not span other color areas, so that the defects of large measuring workload and low efficiency exist. In addition, the measurement area of a conventional color difference meter is usually between (4-8 mm) x (4-8 mm), and the sampling area is small. In the existing laser material, the width of a disordered reflection area caused by a light beam is about 8mm, and the light beam area has the characteristic of periodic arrangement, so that the color sampling is carried out only by one (4-8 mm) x (4-8 mm) area, the randomness is realized, and the color cannot be accurately and effectively judged. Therefore, a device capable of measuring the chromatic aberration of the laser smoke standard sample is needed to improve the accuracy and the measurement efficiency of the test result.
Disclosure of Invention
The invention aims to provide a laser cigarette label color difference measuring device, which utilizes the characteristic of a grating structure of regular and periodic arrangement of laser cigarette labels, sets a fixed measuring area in a software module, controls a color measuring device to move along a fixed step length in the measuring area for measurement, and comprises color information and 'light beam' information in a measuring result, wherein an algorithm judges the color information of a main body through spectral reflectivity, and then eliminates the disordered emissivity information of the light beam to finally obtain the required color information. And finally, calculating the average value of the chromatic aberration of the standard sample and the non-standard sample in the color measurement area by using a CIELAB or CMC chromatic aberration formula, and judging whether the non-standard sample is qualified or not.
The measuring device can also be used for measuring the color difference of the common non-laser cigarette standard, a point measuring area or a measuring area with a certain length which is set in advance in a software module is selected on the image of the common non-laser cigarette standard sample collected by a camera, and the color measuring device is controlled to move to the measuring area for color measurement.
The invention mainly solves the problems of insufficient accuracy, low measurement efficiency and instability of the conventional laser cigarette label color difference measurement, and realizes the stable and continuous measurement of the laser cigarette labels. The automatic positioning device has the advantages of automatic positioning, improvement of accuracy and stability of test results and the like. The measuring device and the measuring method can be used for continuously measuring the product chromatic aberration of the cigarette label printing factory, and detecting the product quality of the cigarette label printing factory.
The invention adopts the following technical scheme:
a laser cigarette label color difference measuring device, comprising:
the device comprises a box body (1), an LED light source (2) fixedly arranged on the inner wall of the box body (1), a camera (3) fixedly arranged right above the center inside the box body (1), a vacuum adsorption lofting platform (4) which is arranged below the camera (3) and is on the same vertical line with the center of a lens of the camera (3), a light source button (5), a negative pressure button (6), a vacuum adsorption pump (9), an industrial personal computer (7) and a display (8) connected with the industrial personal computer (7);
the measuring device further comprises a measuring platform (10), the measuring platform (10) is positioned right above the vacuum adsorption lofting platform (4), and the measuring platform (10) comprises the following components:
the device comprises an X-axis linear motion device (11), a Y-axis linear motion device (12), a zero correction box (13), a correction whiteboard (14), a guide rail (15), a color measuring device (16) with the bottom connected with the vacuum adsorption lofting platform (4) and the top connected with the guide rail (15), wherein the zero correction box (13) and the correction whiteboard (14) are fixedly arranged on one side of the measurement platform (10); the rectangular sampling window of the color measuring device (16) is not less than 50mm in length and not less than 8mm in width.
A laser cigarette label color difference measurement method comprises the following steps:
(1) After the laser cigarette label color difference measuring device is started and is powered on, a light source button (5) is clicked to turn on an LED light source (2), then a software control interface of a display (8) is turned on, and after the cigarette label color difference measuring system software is started, a color measuring device (16) automatically returns to zero; clicking zero calibration, wherein the color measuring device (16) can move in X and Y directions along the guide rail (15) under the drive of a servo motor (wherein the extending direction of the convex area is defined as X direction, the direction perpendicular to the extending direction of the convex strip is defined as Y direction), the zero calibration box (13) moves upwards in the vertical direction under the control of the stepping motor, is attached to the color measuring device (16), completes zero calibration, and returns to zero after calibration is completed; after the white calibration is clicked, the color measuring device (16) is attached to the correction whiteboard (14) in the same way, so that the white calibration is completed;
(2) Placing a standard sample: manually placing a tobacco standard sample on a vacuum adsorption lofting platform (4), aligning the boundary of the tobacco standard sample with an L-shaped gauge (17) when placing the sample, pressing a negative pressure button (6), and adsorbing the laser tobacco standard sample by a vacuum adsorption pump (9) to be smooth;
(3) Clicking a drawing starting button on a cigarette standard color difference measurement system software, imaging the whole cigarette standard sample to be measured by a camera (3) above a measurement platform (10), manually selecting one or more measurement areas on a collected sample image, controlling a color measuring device (16) to move, position and measure along X and Y axis directions by a computer according to the manually selected measurement areas, and displaying Lab values, spectral reflectivities, disordered emissivity and spectral graphic information of different positions of the sample to be measured on a software interface;
(4) And judging the color information of the main body through the spectral reflectivity, and removing the disordered emissivity information of the light column to obtain the required color information. And calculating color difference between the color information of different positions of the sample to be detected and the color information of the standard sample by adopting a CIELAB or CMC (l: c) color difference formula, and judging the qualified product and the unqualified product according to a preset acceptable color difference threshold.
The invention has the beneficial effects that:
1. the measuring device adopts a movable measuring structure, and can finish color measurement on a plurality of different parts of the laser smoke standard sample according to a set program in one measuring process, thereby improving the measuring efficiency.
2. The invention designs a collecting and positioning module of a camera, a lens and an LED light source combination in the measuring device. The whole image of the laser cigarette label sample is obtained through the acquisition module combined by the camera, the lens and the LED light source, a measurement area is independently selected on the laser cigarette label sample image, the measurement area can reach 8mm or more and 50mm or more, and various messy emission areas can be easily covered in a large-area sampling mode. The color measuring device is triggered to move to a selected measuring area for color measurement according to the position signal, and the design can ensure that the accuracy and the reproducibility of the test result are higher.
3. According to the color difference calculation method of the laser cigarette label, the main color information is judged through the spectral reflectance, and the disordered emissivity information of the light beam is removed, so that the required color information is obtained. And finally, calculating chromatic aberration of the color information of different positions of the sample to be detected and the color information of the standard sample by adopting a CIELAB or CMC (l: c) chromatic aberration formula, so that the obtained result is more accurate.
Drawings
Fig. 1 is a schematic structural diagram of a laser cigarette label color difference measuring device.
Fig. 2 is a schematic diagram of the structure of the measuring platform 10.
Fig. 3 is a schematic diagram of light passing through a laser smoke sample flat area.
Fig. 4 is a schematic diagram of light passing through a raised area of a laser smoke standard sample.
Fig. 5 is a flow chart of a laser cigarette label color difference measurement method.
Wherein the reference numerals have the following meanings:
the laser smoke standard sample comprises a 1-box body, a 2-LED light source, a 3-camera, a 4-vacuum adsorption lofting platform, a 5-light source button, a 6-negative pressure button, a 7-industrial personal computer, an 8-display, a 9-vacuum adsorption pump, a 10-measurement platform, an 11-X axis linear motion device, a 12-Y axis linear motion device, a 13-zero correction box, a 14-correction whiteboard, a 15-guide rail, a 16-color measuring device, a 17-L-type ruler, an 18-safety grating, a 20-traditional color difference meter measuring area, a 21-color measuring device measuring area, an a-incident ray, a b-reflected ray, a c-color measuring device moving direction, a d-color measuring device moving step length, an f-disordered reflection area, a g-laser smoke standard sample flat area, an h-laser smoke standard sample convex area and a k-light pillar area.
Detailed Description
The invention is further described below with reference to the drawings and examples.
The invention discloses a laser cigarette label color difference measuring device. As shown in fig. 1 and 2, the vacuum adsorption and lofting device comprises a box body 1, an LED light source 2, a camera 3, a vacuum adsorption lofting platform 4, a light source button 5, a negative pressure button 6, an industrial personal computer 7, a display 8, a vacuum adsorption pump 9, a measuring platform 10, an L-shaped gauge 17 and a safety grating 18. The measuring platform 10 further comprises an X-axis linear motion device 11, a Y-axis linear motion device 12, a zero correction box 13, a correction whiteboard 14, a guide rail 15 and a color measuring device 16.
The color measuring device 16 in this embodiment is fixed on the Y-axis linear motion device 12, the X-axis linear motion device 11 and the Y-axis linear motion device 12 reciprocate above the vacuum adsorption lofting platform 4 under the driving of the servo motor, and the color measuring device 16 reciprocates under the driving of the Y-axis linear motion device 12. The color measuring device 16 is provided with a diffuse reflection type integrating sphere light source, the illumination and observation geometric conditions are diffuse reflection light illumination, and the angle of view detection deviating from the normal direction by 8 degrees comprises specular reflection.
The X-axis linear motion device 11 and the Y-axis linear motion device 12 in the embodiment belong to a screw rod linear motion device, and main components of the device comprise a screw rod, a screw rod supporting seat, a coupler, a displacement sensor and the like.
The camera 3 in this embodiment is fixed directly above the box and is located at the center of the vacuum adsorption lofting platform 4, and the collection range can cover the whole vacuum adsorption lofting platform 4.
The LED light source 2 in this embodiment is fixed on four walls of the case 1, and shines on a laser cigarette label sample, and images with the camera 3.
The L-shaped ruler 17 in the embodiment is arranged beside the left frame and the lower frame of the vacuum adsorption lofting platform 4, so that the lofting samples are aligned with the two frames each time.
The safety grating 18 in this embodiment is mainly used for protecting the motor, and when the servo motor and the stepping motor work, if the safety grating 18 is touched, the motor is automatically powered off to stop working so as to ensure the operation safety.
The zero correction box 13 and the correction whiteboard 14 in the embodiment are retracted when not in operation, and move upwards to be attached to the color measuring device 16 under the control of the stepping motor when in operation, so that the correction of the color measuring device 16 is completed.
The power line, the interface line and the network port line of the color measuring device 16 in this embodiment and the power line and the interface line of the camera 3 are all connected to the industrial personal computer.
The industrial personal computer 7 in this embodiment is further connected to a display and a printer.
The laser cigarette label color difference measuring method implemented according to the device structure is carried out according to the following steps, and a flow chart of the measuring method is shown in fig. 3:
1. after the laser cigarette label color difference measuring device is started and is powered on, the LED light source 2 is turned on by pressing the light source button 5.
2. Opening a software control interface of the display 8, and automatically resetting the color measuring device 16 after the cigarette pack color difference measurement system software is started; clicking zero calibration, wherein the color measuring device 16 moves along the guide rail 15 in the X and Y directions under the drive of a servo motor, the zero calibration box 13 moves upwards in the vertical direction under the control of a stepping motor, is attached to the color measuring device 16, completes zero calibration, and returns to zero after calibration is completed; after the white calibration is clicked, the color measuring device 16 is attached to the correction whiteboard 14 in the same manner, and the white calibration is completed.
3. Placing a standard sample: the laser cigarette standard sample is placed on the vacuum adsorption lofting platform 4 and is aligned with an L-shaped ruler 17 at the left lower corner of the lofting platform, a negative pressure button 6 is pressed, a vacuum adsorption pump 9 is started, and the laser cigarette standard sample is adsorbed and leveled.
4. Clicking a drawing starting button on cigarette standard color difference measurement system software, clicking the drawing starting button on the cigarette standard color difference measurement system software, triggering a camera 3 to draw a drawing, obtaining a real-time image of a laser cigarette standard sample, selecting an area icon, drawing a measurement area on the real-time image, wherein the measurement area is in a region vertical to a light beam direction, the length of the measurement area is more than 47.5mm+0.5Xthe length of a rectangular sampling window of a color measuring device 16, the width of the measurement area is more than the width of the rectangular sampling window of the color measuring device 16, the color measuring device 16 moves to the area, and measuring 20 sampling points with equal intervals of 2.5mm along the direction vertical to the light beam. And selecting one or more measurement areas, selecting a measurement mode, wherein the selection mode is Lab values, spectral reflectivities, disordered emissivity and spectral patterns of the measurement areas, clicking to start measurement, moving the color measuring device to the selected measurement areas according to a selected sequence to perform color measurement, clicking to stop drawing after the measurement is finished, and automatically resetting the color measuring device.
5. Placing a non-standard sample: the non-standard sample is placed in the same manner as the standard sample, i.e., in alignment with the L-gauge 17.
6. Because the non-standard sample and the standard sample are placed in the same position, the selected measuring area on the standard sample still remains, the image collection is started by clicking, the measurement is started, the color measuring device still moves to the selected measuring area according to the selected sequence to perform color measurement, the Lab value, the spectral reflectivity, the disordered emissivity, the spectral graph, the color difference value, the color difference scatter diagram and the statistical information of the measuring area are obtained, after the measurement is finished, the image collection is stopped by clicking, and the color measuring device automatically returns to zero.
The present examples are intended to illustrate the invention and are not intended to limit the scope of the invention further.
Claims (2)
1. A laser cigarette label color difference measuring device, comprising:
the vacuum adsorption lofting platform comprises a box body (1), an LED light source (2) fixedly arranged on the inner wall of the box body (1), a camera (3) fixedly arranged right above the center inside the box body (1), a vacuum adsorption lofting platform (4) which is arranged below the camera (3) and is positioned on the same vertical line with the center of a lens of the camera (3), a light source button (5), a negative pressure button (6), a vacuum adsorption pump (9), an industrial personal computer (7), a display (8) connected with the industrial personal computer (7), a safety grating (18) and an L-shaped gauge (17) which is arranged on the left lower frame of the vacuum adsorption lofting platform (4);
the measuring device is characterized by further comprising a measuring platform (10), wherein the measuring platform (10) is positioned right above the vacuum adsorption lofting platform (4), and the measuring platform (10) comprises the following components:
the device comprises an X-axis linear motion device (11), a Y-axis linear motion device (12), a zero correction box (13), a correction whiteboard (14), a guide rail (15), a color measuring device (16) with the bottom connected with the vacuum adsorption lofting platform (4) and the top connected with the guide rail (15);
the X-axis linear motion device (11) and the Y-axis linear motion device (12) belong to a screw rod linear motion device, and the main components of the X-axis linear motion device are a screw rod, a screw rod supporting seat, a coupler and a displacement sensor; the X-axis linear motion device (11) and the Y-axis linear motion device (12) are respectively provided with a servo motor, and the color measuring device (16) is driven by the servo motor to reciprocate along the X-axis and the Y-axis on the guide rail (15); the zero correction box (13) and the correction whiteboard (14) are fixedly arranged on one side of the measurement platform (10); the rectangular sampling window of the color measuring device (16) is not less than 50mm in length and not less than 8mm in width, and a power line, an interface line and a network line of the color measuring device (16) and a power line and an interface line of the camera (3) are connected to the industrial personal computer (7), and the industrial personal computer (7) is further connected with a printer.
2. The measuring device according to claim 1, characterized in that the color measuring device (16) is provided with a diffusely reflecting integrating sphere light source, the illumination and observation geometry being diffusely reflecting light illumination, viewing angle detection of 8 ° from normal, including specular reflection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810601976.2A CN108801463B (en) | 2018-06-12 | 2018-06-12 | Laser cigarette label color difference measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810601976.2A CN108801463B (en) | 2018-06-12 | 2018-06-12 | Laser cigarette label color difference measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108801463A CN108801463A (en) | 2018-11-13 |
| CN108801463B true CN108801463B (en) | 2023-07-14 |
Family
ID=64085239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810601976.2A Active CN108801463B (en) | 2018-06-12 | 2018-06-12 | Laser cigarette label color difference measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108801463B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110789223A (en) * | 2019-06-26 | 2020-02-14 | 延边长白山印务有限公司 | Method for detecting and controlling stable hue of batch of printed matter |
| CN110806388B (en) * | 2019-11-20 | 2022-05-27 | 河南牧业经济学院 | Dark light column positioning device, positioning method and color measurement method of columnar laser paper |
| CN110806389B (en) * | 2019-11-20 | 2022-05-27 | 河南牧业经济学院 | Device and method for detecting color quality of columnar laser paper |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4603251A (en) * | 1982-10-22 | 1986-07-29 | Institute Po Technicheska Kibernetika I Robotika | Device for determining the reflective characteristics of articles |
| CN103344578A (en) * | 2013-07-15 | 2013-10-09 | 中国农业科学院烟草研究所 | Method for measuring color of tobacco |
| CN106052876A (en) * | 2016-07-19 | 2016-10-26 | 北京印刷学院 | Light pole laser paper and printed matter color difference measurement method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5962239B2 (en) * | 2011-07-29 | 2016-08-03 | 株式会社リコー | Color measuring device, image forming apparatus and program |
| CN105424191B (en) * | 2015-11-05 | 2017-05-31 | 北京印刷学院 | A kind of color measurement method of light beam laser paper |
-
2018
- 2018-06-12 CN CN201810601976.2A patent/CN108801463B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4603251A (en) * | 1982-10-22 | 1986-07-29 | Institute Po Technicheska Kibernetika I Robotika | Device for determining the reflective characteristics of articles |
| CN103344578A (en) * | 2013-07-15 | 2013-10-09 | 中国农业科学院烟草研究所 | Method for measuring color of tobacco |
| CN106052876A (en) * | 2016-07-19 | 2016-10-26 | 北京印刷学院 | Light pole laser paper and printed matter color difference measurement method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108801463A (en) | 2018-11-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109000797B (en) | Laser cigarette label color difference measurement method | |
| CN108801463B (en) | Laser cigarette label color difference measuring device | |
| US9605949B2 (en) | Displacement sensor, spectral characteristic measuring apparatus, color measuring apparatus, planar measured object quality monitoring apparatus, displacement measuring method, spectral characteristic measuring method, and color measuring method | |
| CN104567679B (en) | A kind of system of turbo blade vision-based detection | |
| CN106091926B (en) | The detection device and method of the miniature workpiece inside groove size of the asynchronous exposure of multi-point source | |
| CN1761869A (en) | Method and apparatus for determining one or more physical properties of a rolled smoking article or filter rod | |
| CN104111260A (en) | Nondestructive ceramic detection device and detection method thereof | |
| CN110017899B (en) | Apparatus for complex surface color detection system | |
| TWI794400B (en) | Infrared light transmission inspection for continuous moving web | |
| CN202403666U (en) | Laser and camera-shooting integral measuring instrument | |
| CN210108267U (en) | Rubber semi-manufactured goods width dimension on-line measuring device | |
| CN106000903B (en) | A kind of non-contact detection system and method for being used to detect loom cloth gripper edge gap | |
| CN211452221U (en) | Universal part size tester | |
| CN207231420U (en) | Mobile phone curved surface housing profile measuring apparatus and its side angle slide unit based on Spectral Confocal technology | |
| CN208206304U (en) | A kind of radium-shine cigarette-brand color difference measuring device | |
| CN208888127U (en) | A kind of printed matter color automatic detection device based on image and spectroscopic modes | |
| CN217505161U (en) | Numerical aperture testing device for self-focusing lens | |
| CN110044272B (en) | Laser width measurement centering device and using method | |
| CN109931882B (en) | Heat exchange fin key parameter detection system and measurement method | |
| US20080174788A1 (en) | Scanner Device | |
| CN103557790A (en) | Raster image composite automatic measuring method | |
| CN1323417C (en) | Intelligent measuring instrument for shadow mask aperture | |
| CN102359932B (en) | Paper forming degree measurement apparatus | |
| CN110412032A (en) | A kind of weaving intelligent measurement rating system and ranking method | |
| CN220018469U (en) | Weld joint size measuring mechanism based on laser contour sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |